JPS5798143A - Base body of detection type for variation in electrostatic capacity value - Google Patents

Base body of detection type for variation in electrostatic capacity value

Info

Publication number
JPS5798143A
JPS5798143A JP55171828A JP17182880A JPS5798143A JP S5798143 A JPS5798143 A JP S5798143A JP 55171828 A JP55171828 A JP 55171828A JP 17182880 A JP17182880 A JP 17182880A JP S5798143 A JPS5798143 A JP S5798143A
Authority
JP
Japan
Prior art keywords
diamond
shank
grain
base body
variation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55171828A
Other languages
Japanese (ja)
Inventor
Hideaki Takehara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP55171828A priority Critical patent/JPS5798143A/en
Priority to DE3147551A priority patent/DE3147551A1/en
Priority to US06/327,672 priority patent/US4542493A/en
Priority to GB8136659A priority patent/GB2090458B/en
Priority to CH7794/81A priority patent/CH655194A5/en
Publication of JPS5798143A publication Critical patent/JPS5798143A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus

Landscapes

  • Ceramic Products (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE: To manufacture a base body by sticking a grain of diamond, having a conductive layer of its own carbon on the surface, to a shank in one body by performing a high-temperature treatment in a vacuous or inert gas atmosphere containing a fine amount of oxygen.
CONSTITUTION: A high-temperature treatment is carried out in a vacuous or inert gas atmosphere containing fine oxygen to obtain a base body of a reproducing stylus of a detection type for variation in electrostatic capacity value while a grain 1 of diamond having a conductive layer of its own carbon on the surface and a shank 2 used to polishing the grain of diamond are stuck together in one body. The said diamond is artificial or natural waste one, and the shank 2 uses a material which is hardly oxidized even when held at high temperature, e.g., 1150°C for six hours in a vacuous state or inert gas atmosphere containing a small amount of oxygen. In a recessed part 3 formed in the shank 2 at its one end, the diamond grain 1 is stuck by using a welding material 4 which is never oxidized in the said atmosphere.
COPYRIGHT: (C)1982,JPO&Japio
JP55171828A 1980-12-05 1980-12-05 Base body of detection type for variation in electrostatic capacity value Pending JPS5798143A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP55171828A JPS5798143A (en) 1980-12-05 1980-12-05 Base body of detection type for variation in electrostatic capacity value
DE3147551A DE3147551A1 (en) 1980-12-05 1981-12-01 SENSOR NEEDLE WITH DIAMOND AND CERAMIC BODIES CONNECTED BY SOLDERING FOR CAPACITY RECORDS
US06/327,672 US4542493A (en) 1980-12-05 1981-12-04 Pickup stylus having fused diamond and ceramic bodies with conductive surfaces for capacitance disk records
GB8136659A GB2090458B (en) 1980-12-05 1981-12-04 Pickup stylus having fused diamond and ceramic bodies for capacitance disk records
CH7794/81A CH655194A5 (en) 1980-12-05 1981-12-07 METHOD FOR PRODUCING A SENSOR FOR CAPACITIVE RECORDING CARRIERS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55171828A JPS5798143A (en) 1980-12-05 1980-12-05 Base body of detection type for variation in electrostatic capacity value

Publications (1)

Publication Number Publication Date
JPS5798143A true JPS5798143A (en) 1982-06-18

Family

ID=15930489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55171828A Pending JPS5798143A (en) 1980-12-05 1980-12-05 Base body of detection type for variation in electrostatic capacity value

Country Status (5)

Country Link
US (1) US4542493A (en)
JP (1) JPS5798143A (en)
CH (1) CH655194A5 (en)
DE (1) DE3147551A1 (en)
GB (1) GB2090458B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040756C2 (en) * 2000-08-14 2002-07-11 Werner Bickelmann Styli with soldered receptacles and probing elements
EP1967312A1 (en) * 2007-03-06 2008-09-10 Siemens Aktiengesellschaft Method for repair soldering of a component under vacuum and a selected oxygen partial pressure
CN112259130A (en) * 2020-10-15 2021-01-22 彭文慧 Diamond stylus and processing technology thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028803A (en) * 1973-07-16 1975-03-24
JPS5211303B2 (en) * 1972-11-21 1977-03-30
JPS5551244A (en) * 1978-10-11 1980-04-14 Ebara Corp Cooling/heating apparatus

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836768A (en) * 1957-12-27 1960-06-09 Gen Electric Improvements in phonograph stylus
US2992007A (en) * 1957-12-27 1961-07-11 Gen Electric Phonograph stylus
CH554578A (en) * 1971-06-12 1974-09-30 Benz Ernst CARTRIDGE NEEDLE.
JPS511398A (en) * 1974-04-04 1976-01-08 Matsushita Electric Ind Co Ltd
US4105213A (en) * 1975-10-15 1978-08-08 Victor Company Of Japan, Ltd. Device for cutting a sound groove on a disc recording medium
EP0000816A1 (en) * 1977-08-06 1979-02-21 Beecham Group Plc Substituted amino-pyridine derivatives, processes for their preparation and pharmaceutical compositions containing them
JPS609036B2 (en) * 1977-09-02 1985-03-07 萬有製薬株式会社 Production method of uracil derivatives
US4357699A (en) * 1980-03-26 1982-11-02 Adamant Kogyo Co., Ltd. Capacitance detection type stylus with diamond body and electrode having the same wear resistance properties
JPS5938653B2 (en) * 1980-05-30 1984-09-18 日本ビクター株式会社 How to make needles with electrodes
US4340954A (en) * 1980-08-04 1982-07-20 Rca Corporation Stylus tip fabrication from a synthetic diamond stone
CS218328B1 (en) * 1980-12-22 1983-02-25 Jiri Steif Device for stretching the shank part of the footwear on the stretching shoemaker machines
JPS57195343A (en) * 1981-05-26 1982-12-01 Victor Co Of Japan Ltd Manufacture of reproducing stylus of variation detection type for electrostatic capacity value

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5211303B2 (en) * 1972-11-21 1977-03-30
JPS5028803A (en) * 1973-07-16 1975-03-24
JPS5551244A (en) * 1978-10-11 1980-04-14 Ebara Corp Cooling/heating apparatus

Also Published As

Publication number Publication date
GB2090458A (en) 1982-07-07
CH655194A5 (en) 1986-03-27
US4542493A (en) 1985-09-17
DE3147551A1 (en) 1982-09-23
GB2090458B (en) 1985-04-17
DE3147551C2 (en) 1987-03-26

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